The last time I read, Pixar announced there would not be a Toy Story 4. Even though there most likely will not be, many fans and cast members have stated that if there would be, they would work on it. If they did make a forth, they would have extremely high expectations to follow. The Third was phenomenal. *_* (They'd have to get pony rights from Hasbro to have ponies it it. I'm surprised they actually got Totoro in.)